Last week, Austria expelled three Russian diplomats accused of using diplomatic cover for espionage activities in Vienna.
Soon after, Foreign Minister Beate Meinl-Reisinger said that Austria was taking a tougher approach to spying activities, calling it a "security issue" for the country.
"We have communicated this clearly and unequivocally to the Russian side, including regarding the 'antenna forest' at the Russian representation," she said in a statement. "It is clear that it is unacceptable for diplomatic immunity to be used to conduct espionage."
What was she referring to?
Researchers and journalists have warned that several Russian diplomatic buildings in Vienna are fitted with large antenna systems and satellite dishes that could be used to intercept communications.
